Method of forming lubricators



Jan. 31, 1928; 1,657,597

E. F. TERRY, JR

METHOD OF FORMING LUBRICATORS Original Filed June 19, 1926 2 Sheets-sheaf, l

27 g 22 15 /7 68 LE 57 70 7' 7O 29 T- Zlwuentoz Jan. 31, 1928. V

E. F. TERRY, JR

METHOD OF FORMING LUBRICATORS Original Filed June 19. 1926 2 Sheets-Sheet 2 amnion Patented Jan. 31, 1928.

.unrrso STATES PATENT OFFICE.

EDWARD F. TERRY, 31k, 01? DENVER, COLORADO, ASSIGNOR TO T HE DENVER ROCK DRILL MANUFACTURING COMPANY, OF DENVER, COLORADO, A CORPORATION OF DELAWARE.

METHOD OF FORMING LUBRICATORS.

Original application filed June 19, 1926, Serial No. 117,118. Divided and this application filed February 12,

1927. Serial ms. 167,765.

The present invention relates to lubricators of the type disclosed in my co-pending application for patent Serial No. 88,866, filed February '17, 1926, wherein a pendulum member is rotatably mounted within the casing, and carries the means for directing lubricant from the reservoir into the air line. in the structure disclosed in that application a two-part casing is employed.

One of the objects of the present invention is to provide a method by which a practical structure is produced, in which the lubricant holding casing is formed of one piece, the pendulum member, however, being located therein and operating in the same manner as in the structure above mentioned. This arrangement eliminates one of the joints and consequent chance of leakage, as well as places the pendulum and its mounting so W that the possibility of its being tampered with is materially lessened. This application is a division of application SerialNo. 117,118, filed June 19, 1926.

In the accompanying drawings:

Figure 1 is a longitudinal sectional view through the preferred embodiment of the invention,

Figure 2 is a cross sectional view on the line 22 of Figure 1, V

Figure 3 is av detail perspective view of the stem adjusting key that may be employed.

Figured is a longitudinal sectional view,

of the core parts and pendulum member in separated relation,

Figure 5 is a sectional view on the line 55 of Figure 4,

Figure 6 is a side elevation of the core and pendulum member in assembled relation. in Figure 7 is a sectional view through a mold in completed form for the casting of the casing.

Figure 8 1s a plan view of the stem holding spring.

Figure 9 is a view of the spring blank. r

In the embodiment disclosed, a single piece casing 8 is provided that is of generally ovoidal form, the ends of the casing I being provided with inlet and outlet ports 9, the Walls of which are internally threaded,

as shown at 10 for the reception of hose I couplings. A lateral opening 11 is also provided, the walls being internally threaded as illustrated at 12 to receive the threaded end of a closure plug.13.- The casing provides an internal lubricant reservoir 14.

A pendulum member islocated in the reservoir or chamber 14, and includes a sleeve section 15 having a passageway 16 therethrough, the ends of said passageway being enlarged to provide bearing sockets 17. This sleeve member has depending therefrom a pendulum mass 18, and has an upstanding tubular portion v19 adapted to aline with the opening 11. The tubular portion 19 and pendulum mass 18 have a stem chamber 20 that is disposed transversely of the bore 16. In this chamber is rotatably mounted a stem 21 having an annular groove 22 near its upperend. In this groove is located a bowed friction spring 23 that has longitudinally split terminals 2 1. The spring serves to frictionally hold the stem in place in the chamber, both from longitudinal displacement apd in different positions to which it is rotated. Inasmuch as the stem 21 is placed in position after the pendulum is hung on its trunnions within the casing, the spring 23 permits the assembly of the parts.

A lubricant conduit 25 has an inlet end 26 formed in the bottom of the pendulum mass, and extends upwardly where it isin communication with an annular groove 27 formed in the upper end of the stem 21. The inletend 26 is preferably covered by a screen 28. v The stem furthermore has a longitudinal downwardly extending bore or channel 29 in communication with the groove 27, and said channel has transverse outlet ports 30 which open through opposite sides of the stem 21 midway of the bore IG. This stem also has at right angles to the ports '30 fluid inlet ports 31 in communication with into the lower end of the bore or chamber 20. From this lower end a conduit 33 leads upwardly and opens into the upper end of the lubricant reservoir 14.

As will be clear by reference to Figures 1 and 2, the upper end of the stem 21 is adapted to aline with the opening 11, and is thus accessible therethrough. When the plug 13 is removed, means are provided by which the stem can be turned. Thus the said stem is shown as provided in its upper end with spaced sockets 34 adapted to be engaged by the prongs 35 of a turning tool 36, illustrated in Figure 3.

The pendulum member is rotatably supported within the chamber 14 by journal sleeves 37. These sleeves are preferably pressed into the inner ends of the ports 9,

inward extensions 38 being formed in the casing as integral parts of the ends thereof, and said sleeves engaging in the journal sockets 17, so that the pendulum member rotates thereon. Itwill thus be seen that an open-ended passageway for air or other fluid extends directly through the casing, being formed by the terminal ports 9, by the sleeves 37 andthe bore 16, and it will also be noted that the conduits 25 and 33 are in communication with said passageway. Consequently if fluid under pressure passes through the passageway and there is lubricant in the reservoir 14, lubricant will rise through the conduit 25, and thence passing downwardly. will escape through the ports 30, where it will be caught by the passing fluid and carried away with it.

Inasmuch as the casing 8 is of one piece and the openings 9 and 11 are of less size than the pendulum member, it has been a problem as to the placing of the pendulum member within the casing and mounting it. This problem has been solved in the fol owing manner.

The casing being of metal, preferably cast, a core for the interior has been formed of two sections, as illustrated in Figures 4 to 7, the sections being respectively designated 39 and 40. The sections when placed together, as illustrated in Fig.6, produce the complete core, constituting a body or chamber formingportion 41, stems 42 which pro- 'duce the end ports 9 in the casing, with anchoring terminals 43, and an upstandlngfand pendulum member, removing the core stem 44 that forms the opening 11. The body portion 41 is of suflicient size to receive a completed pendulum member. Conse quently the sections of said body member are formed with socket-s 45 and 46 in which the endulum member is received, said member ing preferably, though not necessarily located at right angles toits final position as will be clear by reference to the aforesai figures. .The pendulum member therefore having been introduced and the core sections fitted together, the joint between them is sealed, and the cavity 47 for the casing having been formed in a mold in the usual manner and as indicated in Figure 7 the core is introduced, the mold sections placed together and the casting made.

The mold is then ,broken, the casting removed and the core is broken and removed, leaving the pendulum member within the casing. After the casing has been dressed and fitted, the journal sleeves 37 are then pressed into the extensions 38, with their inner ends engaged in the journal sockets 17 of the pendulum member, the fitting being of course such that the pendulum member will rotate thereon. mounting for the structure,as shown in Figures 1 and 2.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art with This completes the v out further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction and method of operation may be resorted to without departin from the spirit or sacrificing any of the a vantages of the invention. 7

What I claim is: p

v 1. The method of forming lubricators which consists informing a casing core and enclosing a pendulum member therein, casting a casing about the core and pendulum member, removing the core from the casing and ournaling the pendulum member in the casing 2. he method of forming lubricators which consists in forming a casing core and enclosing a pendulum member therein, casting a casing with end openings about the core and pendulum member, removing the core't'rom the casing and fitting journal members in the end openings of the casing grid in engagement with the pendulum mem- 3. The method of forming lubricators, which consists in forming an elongated casing core with end hole-forming stems and embedding in said core a pendulum member having a passageway therethrough, the pas sageway being transverse to the hole-forming-stems, casting a casing about the core from the formed casing, alining the passageway of the pendulum with the end openings of the casing, and journaling the pendulum on the casing with the openings and passageways in alinement.

4. The method of forming lubricators which consists in formin an elongated casin core with end holeorming stems and embedding in said core a pendulum member having a passageway therethrough, the pas" sageway being transverse tothe hole-forming stems, casting a, casing about the core the pendulum member and provide a pasangl pendulum member, removing the core. sageway through the casing from end to end from the formed casing, alining the pasthereof, said passagewa extending through 10 sageway of the pendulum with the end open-' e pendulum member. ings of the casing, and fitting tubular jour- I In testimony whereof, I aflix' my signature. 11211 members in the end openings and passageway to form a rotatable mounting for EDWARD F. TERRY, JR. 

